Cita APA (7a ed.)

LIVINGSTON, G. F. (1960). Learn arithmetic: The easy way. Greystone Press.

Cita Chicago Style (17a ed.)

LIVINGSTON, Gilbert F. Learn Arithmetic: The Easy Way. Cambridge: Greystone Press, 1960.

Cita MLA (9a ed.)

LIVINGSTON, Gilbert F. Learn Arithmetic: The Easy Way. Greystone Press, 1960.